# GrrrDog/Java-Deserialization-Cheat-Sheet

The cheat sheet about Java Deserialization vulnerabilities

Repository: https://github.com/GrrrDog/Java-Deserialization-Cheat-Sheet
Canonical: https://ross.abutalabs.com/products/java-deserialization-cheat-sheet
License Family: other
Topics: javadeser, java-deserialization, pentesting
Last push: 2023-05-26T15:18:01+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3844, "days_push": 1195, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3182, forks 598 (observed 2026-08-28T04:07:47.877634+00:00)

## What it is
A curated cheat sheet for pentesters and security researchers covering deserialization vulnerabilities across Java/JVM serialization libraries (native serialization, XStream, Jackson, Fast, SnakeYAML, AMF, and more). It aggregates talks, papers, payload generators, exploits, detection tips, and protection guidance.

## Use cases
- learn about java deserialization vulnerabilities
- find gadget chains and payload generators for javadeser
- prepare for pentesting java applications with insecure deserialization
- find protection and mitigation advice for java deserialization attacks
- research deserialization flaws in libraries like xstream, jackson, fast, snakeyaml
- detect java deserialization vulnerabilities in a target application

## When to choose
- you are a pentester or researcher assessing Java/JVM applications for deserialization flaws
- you need a curated index of talks, tools, and exploits for Java deserialization
- you want guidance on detecting and protecting against insecure deserialization in Java

## When to avoid
- you need a runnable scanning or exploitation tool rather than reference material
- you are looking for deserialization vulnerability resources for non-JVM languages
- you need guaranteed up-to-date content, as the sheet is maintained sporadically

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: security, penetration-testing, documentation
- domain: security, penetration-testing, developer-tools
- platform: jvm, cross-platform
- tags: cheat-sheet, java-deserialization, vulnerability-research, exploitation, awesome-list

## Member repositories
- GrrrDog/Java-Deserialization-Cheat-Sheet (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:47.877634+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:45:01.236937+00:00, confidence not recorded.
  - readme: https://github.com/GrrrDog/Java-Deserialization-Cheat-Sheet (fetched 2026-08-28T04:07:47.877634+00:00, sha f994c836f5c3)
- Data as of 2026-08-30T08:39:29.467469+00:00.